Febdinand eahsb



(No Model.)

F. RAHSE.

PIANO TUNING PIN.

No. 356,159. Patented Jan. 18, 1887.

inn/v "k UNITE STATES PATENT OFFICEO FERDINAND RAHsE, or LoBAU, SAXONY, GERMANY.

PIANO-TUNING PIN.

SPECIFICATION forming part of'Letters Patent No. 356,159, dated January 18, 1887.

Application filed June 28. 1886. Serial No. 206,481.

(No model.) Patented in Germany February 5, 1886, No. 36,654, and in Belgium hIarch 31, 1886, No. 72,404.

To aZZ whom it may concern:

Be it known that I, FERDINAND Rinse, piano-mannfactnrer, a citizen of Germany, residing at Lobau, Uberlausitz, in the Kingdom of Saxony, have invented certain new and usei'ullinprovements in Piano-Tuning Pins; and I do hereby declare the following to be a full,

.clear, and exact description of the invention,

such as will enable others skilled in the art to which it .appertains to make and use the same.

This invention relates to devices for attaching and tightening the strings of pianos; and it consists, chiefly, in the combination of a frame having ledges and shoulders with plates or blocks to which the strings are attached, and adj listing-screws which work through such plates against said ledges, the rear ends of said plates being held by said shoulders.

In said drawings, Figure 1 represents a vertical section throughapartof thei'rameto which the strings are detachably secured, as stated, oneof the fastening-plates being shown in seetion,and the two others, as well as the screws, being shown in elevation. Fig. 2 represents a front elevation of a part of said frame with the attached devices, and Fig. 3 represents in detail a plan of one of said fastening-plates.

A designates a metallic frame, which is cast with the ironwork of the piano, and provided with projecting horizontal legs B and shoulders 0, each shoulder being arranged above and behind a ledge.

D designates the removable fastening-plates arranged in horizontal series corresponding to said ledges, each of said plates being provided with a perforatedouter tip, (1, and having its other end caught under one of the shoulders C. Each of the strings E is attached to one of these perforated tips,d, and a-screw,F,passes through each plate E, against the top of one of the ledges, B, and, in combination with the corresponding shoulder 0, holds the plate in place. By turning said screw through said plate the string is tightened. The strings are not allowed to come in contact with the metal work, but touch a wooden bead, G, which is set into the face of the lowest ledge. Any one of them maybe easily unt'astened and removed by turning its screw F to loosen the plate a little and then withdrawing said plate and screw.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

A frame provided with a series of ledges, B, and shoulders O, the latter being above and behind the former, in combination with a series of piano-strings, plates D, to which said strings are respectively attached, and screws F, which pass through said plates and bear against said ledges, the rear end of each of said plates being caught under one of said ledges, substantially as set forth.

I11 testimony whereof I do affix my signature in presence of two witnesses.

FERDINAND RAHSE.

Witnesses:

HERMANN KLAUDER, CARL F. REICHELT. 

